An overview of generic melt circulation technology was presented at a Canadian Institute of Mining, Metallurgy and Petroleum conference in 1996.
To overcome limitations in current technology and to open the door to breakthroughs in the extraction and recycling of metals, melt circulation within closed loops is proposed. The general features of generic melt circulation technology, particularly for massive reductions in energy consumption, are highlighted. Reference is made to the recently published paper on lower-energy primary aluminum. More detailed attention is then focused on coproduction of steel and titanium metal directly from ilmenite concentrates. The energy consumption is projected to be less than one third of the best available technology (Kroll process). Next, new copper smelting concepts based on melt circulation are introduced because current advanced processes are judged to be, without exception, energy inefficient.
for Metals
No chemicals can melt metal. Only heat can do that. (You could pour molten iron on aluminum and melt it, but it's the heat doing the melting.) Lots of chemicals can dissolve metals but not melt it.
fire and some chemicals
Well you can stop water from frezzing with salt.
There are MANY plastics, and therefore, many chemicals that will melt those individual plastics.
Steel is dissolved (not melted) in nitric acid.
which chemical is used to melt the iron
A crucible or a furnace.
sun can dissolve
JAMAICA
fire
Burning charcoal, wood and coal.
Metal ores are used as resources from which metals may be extracted.
Yes, you save all the energy that would have been needed to mine fresh ore from the ground and to extract the metal from that ore. The amount of energy needed to collect and sort the recycled metals is insignificant compared to this (especially for metals like aluminum that are very hard to extract from their ores).You only need to use the energy needed to melt the pure metal, which you would have needed anyway after extraction of new metal from fresh ore.
JAMAICA
fire
Burning charcoal, wood and coal.
fire
No, metal ores occur naturally in the Earth.
No, aluminum is a metal. It needs large amounts of energy to extract it from its ores.
Metal ores are used as resources from which metals may be extracted.
Metal ores are refined into metal. Metal is very useful, hence, metal ore is also useful.
Factories do not make metal ore. A refinery or smelter makes metal from metal ores.
Yes, you save all the energy that would have been needed to mine fresh ore from the ground and to extract the metal from that ore. The amount of energy needed to collect and sort the recycled metals is insignificant compared to this (especially for metals like aluminum that are very hard to extract from their ores).You only need to use the energy needed to melt the pure metal, which you would have needed anyway after extraction of new metal from fresh ore.
From various minerals and ores which are mined. Which metal depends on which mineral is mined.
Thermal energy is used to heat your home, to soften or melt plastics for molding, to dry your clothes, to style your hair, to refine ores, to create atmosphere at the campsite, and many hundreds of other uses. Anyone else, feel free to add to the list.